XCMG QAY220 Operation Manual page 155

QAY220 All Terrain Crane Operation Manual
Inspection item
5. Loose piping joints.
Speed reducer:
1. Tightness of mounting bolts.
2. Noise.
Chapter 10
3. Crack, deformation and leakage of gearbox.
4. Wear of bearings.
5. Lubrication.
6. Leakage.
Brakes:
1. Wear of brake disc and lining.
2. Loose and leaking piping joints.
3. Deformations of spring.
Counterbalance valve:
1. Leakage.
2. Loose and leaking piping joints.
3. Pulsation
Winch system
Drums:
1. Cracks.
2. Disorderly rope winding.
Hook block and sheaves:
1. Rotation of hook.
2. Deformation.
3. Movement of trunnion.
4. Connection between trunnion and hook.
5. Deformation of rope guard.
Hook block and sheave:
1. Rotation of sheave (abnormal noise).
2. Cracks and wear of sheaves.
3. Deformation and damage of sheave support and protecting pieces.
4. Lubrication.
Winch rope:
1. Diameter.
2. Wire breakage.
3. Kinks.
4. Deformation.
5. Corrosion.
Periodic inspections 10-5
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